Figure 5-3. Welding Repair of Outer Rail Trunnion

Figure 5-3. Welding Repair of Outer Rail Trunnion

surfaces and contours easily accessible to the weld

groove-ground the entire length of the crack, and

arc. Surfaces of the upright rails are to be

the entire crack removed. Any weld repair must be

protected against such cratering, which can create

made on sound material.

surface embrittlement and a tendency to fracture.

d. No notches, gouges, or craters should be left in

e. Finish grind marks after welding (if any) on

the area of weld repair, but must be weld-filled and

any surface should not exceed 63 microinches, and

ground to the original contour before repair

should run in the direction of the load. When

w e l d i n g . Preparation for weld assumes smooth

5-9